Montigo M38DV PFC User Manual
Installation
Operation &
Maintenance
M38DV-PFC
Peninsula
Direct-Vented
Warning:
Improper installation, adjustment,
alteration, service or maintenance
can cause injury or property
damage. Refer to this manual.
For assistance or additional
information consult a qualied
installer, service agency or the
gas supplier.
For Your Safety:
Do not store or use
gasoline or other ammable vapors and liquids in the vicinity of this
or any other appliance.
What To Do If You Smell Gas:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
Gas Fireplace
Check local codes and read all
instructions prior to installation.
Installer: Leave this manual
with the appliance.
Consumer: Leave this man-
ual for future reference.
M38DV-PFC Peninsula Gas Fireplace
Table Of Contents
Introduction ............................................................................... 2
Installation ..........................................................................3 - 12
Installing the Fireplace Shell .......................................... 3
Installing the Gasline ......................................................
The Remote Switch ........................................................ 4
Direct Vent Installation ................................................... 4
General Requirements ...................................... 4
Terminations ......................................................5
Horizontal Venting Runs ....................................6
Vertical Venting Runs ........................................ 8
Construction around the fireplace
Facing ............................................................ 10
Mantels and Surrounds ................................... 10
Installing the Logset ..................................................... 10
Pilot Burner Adjustment................................................ 11
Gas Control Valve ........................................................ 11
Fans ............................................................ 11
Removing and Installing the Insert ............................... 12
Removing and Installing the Door ................................12
Operation ............................................................................13-14
Model M38DV-PFC ......................................................13
Model M38DV-PFC-I .................................................... 14
Maintenance ............................................................................ 15
Warranty ..................................................................................16
Introduction
The M38DV-PFC is a direct-vented, 3-sided Gas Fireplace with an
adjustable center burner and air-circulating fans. It is available in two
models:
Model M38DV-PFC (continuous pilot)
Model M38DV-PFC-I (intermittent pilot)
4
This manual covers both models and unless otherwise specified, the
designation M38DV-PFC refers to both models. Sections which are
specific to a particular model are marked with a symbol,
plus the appropriate model number.
The M38DV-PFC is rated for:
Natural Gas at 32,000 BTU/H (9.38 Kilowatts) max. input, and
11,000 BTU/H (3.7 Kilowatts) min. input when the middle burner
is turned off
Propane at 32,000 BTU/H (9.38 Kilowatts) max. input, and
11,000 BTU/H (3.7 Kilowatts) min. input when the middle burner
is turned off
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
Modification of the fireplace and/or components including Direct-
Vent assembly or glass doors.
Use of any component part not manufactured or approved by
Montigo in combination with this Montigo fireplace system.
Installation other than as instructed in this manual.
Consult your local Gas Inspection Branch on installation requirements for factory-built gas fireplaces. Installation & repairs should be
done by a qualified contractor.
Installations in Canada must conform to the current CAN/CGA
B-149.1 and .2 Gas Installation Code and local regulations. This fire-
place's fans must be electrically grounded in accordance with CSA
C22.1 Canadian Electrical Code Part 1 and/or Local Codes.
Installations in the USA must conform to local codes, or in the
absense of local codes to the National Fuel Gas Code, ANSI Z223.1-
1988. The fans must be grounded in accordance with local codes
or, in the absence of local codes, with the National Electrical Code,
ANSI/NFPA 70-1987.
Page 2
CAUTIONS
Due to its high operating temperatures, the appliance
should be located out of traffic & away from furniture and
draperies.
• Children and adults should be alerted to the hazards
of the high surface temperature, which could cause
burns or clothing ignition.
• Young children should be carefully supervised when
they are in the same room as the appliance.
• Clothing or other flammable materials should not be
placed on or near the appliance.
P/N XG0202
M38DV-PFC Peninsula Gas Fireplace
23
35 3/4
38
34 5/8
27 3/4
28 1/2
38 1/2
24 5/8
1 1/2
13 3/4
16 1/4
3
3 1/2
Installation
Installing The Fireplace Shell
The fireplace may be installed in any location that is free of air conditioning ducts, electrical wiring and plumbing. Safety, as well as efficiency of operation, must be considered when selecting the fireplace
location. Try to select a location that does not interfere with room
traffic, has adequate ventilation, and offers an accessible pathway for
Direct Vent installation.
The fireplace dimensions are shown below:
Framing
Unprotected combustible walls which are perpendicular to the
fireplace opening, must not project beyond the shaded area shown in
Figure 19b.
For protection against freezing temperatures, it is recommended that
outer walls of the chase be insulated with a vapour barrier. This will
reduce the possibility of a cold-air convection current on the fireplace.
Side View
End View
Figure 1. Fireplace dimensions.
Clearances
The M38DV-PFC clearances to combustible materials are:
Top* 0"
Back 0"
Floor 0"
Mantle** 6"
Flue 1"
* Clearance from the top of the fireplace to
a combustible ceiling within the fireplace
enclosure.
** Refer to page 8.
WARNING:
Figure 2. Framing dimensions. Clearance between the top of the
fireplace and the header may be 0", but we recommend a
clearance of 1/2" - 1" to allow for settling of the building.
When this appliance is installed directly on carpeting, tile or any
combustible material other than wood flooring, it must be installed
on a metal or wood panel extending the full width and depth of
the appliance.
P/N XG0202
Page 3
Installation
3 1/4
1 3/4
7 1/4
2 1/2
11
11
M38DV-PFC Peninsula Gas Fireplace
Installing The Gas Line
The gas line must be installed before finishing the M38DV-PFC fireplace. Natural Gas requires a minimum inlet gas supply pressure of
5.5" W.C. & a manifold pressure of 3.5" W.C. Propane Gas requires a
minimum inlet gas supply pressure of 11" W.C. & a manifold pressure
of 10" W.C. Provision must also be made for a 1/8" N.P.T. plugged
tapping and be accessible for test gauge connection immediately
upstream of the gas supply controls to the appliance. The fireplace
gas connection and the main operating gas valve is located behind
the removable brass trim at the bottom of the unit and need only be
attached to the gas line with an approved fitting, as required by the
applicable installation codes.
Figure 5. Gas line access.
The appliance and its individual shutoff valve must be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply piping system by
closing its individual manual shutoff valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
* After gas line is connected each appliance connection,
valve and valve train must be checked while under normal
operating pressure with either a liquid solution, or leak detec
tion device, to locate any source of leak. Tighten any areas
where bubbling appears or leak is detected until bubbling
stops completely or leak is no longer detected. Do NOT use
a ame of any kind to test for leaks.
-
Vent Installation
This section covers the installation of direct venting and terminations.
For a detailed diagram of allowed termination locations, see Appen-
dix B.
Installation Requirements
The M38DV-PFC fireplace uses Premium venting components
with:
5" inner dia. /8" outer dia.
Minimum 2" clearance to combustibles required for vent pipes
Use only certified Montigo vent components. (Use of other parts
will void the Montigo warranty, and may impede the operation of
the fireplace.)
All joints must be secured with a minimum of two screws per joint
Vent terminations must not be recessed in walls or siding
Horizontal runs must be supported by a minimum of two supports
per horizontal run. A minimum of one screw on each side of support is also required
Flex vent sections may be stretched up to 50% of their total length
(eg. a 24" section may be stretched to 36")
Solid vent sections may be cut less than half way from the tapered
end
CAUTIONS:
Vent terminations can be very hot. If the termination is less than
7 feet above a public walkway, it should be fitted with a certified
Montigo Heat Guard. (Part no. PTKOG)
Do not obstruct, or attempt to conceal, the vent termination.
These actions will affect the operation of the fireplace, and may
be hazardous.
In heavy snow areas, take extra care to prevent snow buildup
from obstructing the vent termination.
Use Montigo VSS Vinyl Heat Shield when using on
applications with vinyl siding to guard against possible
damage.
Vent Terminations
Installing Terminations with Built-In Frames
1. Frame the termination opening to 11" x 11".
2. Fasten the termination to the studs using a minimum of 4
screws.
Installing The Remote Switch
The M38DV-PFC is equipped with a remote-operated valve for use
with a wall switch. See Figure 19 for information on wiring the switch.
The valve is pre-wired and generates its own power. DO NOT con-
nect any external power to it.
Note: The switch location must not exceed 30' from the fireplace.
Page 4
PTO-3
PTO-3F
Figure 6a. Installing a PTKO-F termination.
P/N XG0202
M38DV-PFC Peninsula Gas Fireplace
12
12
1212
12
0
24 48 72 96 120 144 168 192
Horizontal Run (in.)
Hearth
0
12
24
36
48
60
72
84
96
Center of Vent (28.5")
Installation
Installing Terminations with MSR Frames
1. Frame the termination opening to 12" x 12".
2. Fasten the termination to the studs using a minimum of 4 screws.
MSR
PTO-3
PTO-3F
Figure 6b. Installing a PTKO termination with the MSR frame.
Installing Terminations with MOSR Frames
1. Frame the termination opening to 12" x 12".
2. Fasten the MSR frame to the interior side of the studs using a
minimum of 4 screws.
3. Insert the termination into the MSR frame as shown here, and
attach by screwing through the four pilot holes in the termination.
MOSR
Venting Runs
If your installation requires more than 12" of horizontal venting, some
vertical lift is required. Use the vent graph below to determine an
acceptable vent run. Unacceptable venting can affect the fireplace's
combustion.
the maximum horizontal vent run is 16 feet
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre of
the termination and the horizontal run from the from the fireplace flue
collar to the wall flange of the termination. Plot on the Venting Graph
(Fig. 7) with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Figure 7. Venting Graph.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 82", and the hori-
PKO-3
PTO-3F
zontal run to the wall flange of the vent termination is 156", this
would be an acceptable installation.
Example B: (Acceptable Installation)
Figure 6c. Installing a PTKO termination with the MOSR frame.
If the vertical dimension from the hearth is 72" and the horizontal
run to the wall flange of the vent termination is 36", this would be
Installing Heat Guards over Terminations
1. Ensure that the two long mounting brackets are facing the bot-
tom of the termination. (See inset). This will provide more heat
protection at the top of the termination, where temperatures are
highest.
an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 48" and
the horizontal run to the wall flange of the vent termination is
108", this would NOT be an acceptable installation.
2. Attach to the faceplate of the termination using four sheet metal
screws.
Figure 6d. Installing the heat guard.
P/N XG0202
PTKOG
Page 5
Installation
Hearth
Termination
PTKO
Extension
PXT-5 / -10
Exterior
Wall
12" max. horizontal
(with no vertical lift)
28 1/2"
192" max.
Hearth
Flex Section
PVA Adaptor
Exterior
Wall
PIHR-6/-10
Termination
PEL-90F/F
Direct Vent Installation
Vent systems that terminate through a wall may comprise up to six
different components:
A - Termination PTKO-2 (2" length)
PTKO-5 (5" length)
PTKO-9 (5" length)
PTKO-2F (2" length)
PTKO-5F (5" length)
PTKO-9F (9" length)
B - Stucco Kits MSR (stucco frame)
MOSR (stucco can)
M38DV-PFC Peninsula Gas Fireplace
C - Flex sections PFL-1 (12" section)
PFL-2 (24" section)
PFL-3 (36" section)
PFL-4 (48" section)
D - Solid sections PEXT-1 (12" section)
PEXT-2 (24" section)
PEXT-3 (36" section)
PEXT-4 (48" section)
PEXT-6 (72" section)
E - Extensions PXT-3 (5" section)
PXT-10 (10" section)
F - 90° elbow PEL-90F/F
PEL-90M/M
Short Configurations:
For installations straight through the wall, use a 2" or 5" termination
(see above chart for Part #), and PXT-5 or PXT-10 to achieve the
desired length. The maximum horizontal vent run with no vertical lift
is 12".
See Figure 8.
Figure 8. Short Horizontal installation.
Long Vent Runs:
For longer or more complex vent runs, vertical lift is required. First
ensure that the planned run is acceptable using the Vent Graph. Plan
out the required components using the chart above. You may be able
to use fewer components using the chart below.
Example:
A 10' section and elbow (PIHR-10) used in conjunction with 3 ft. flex
section (PFL-3) will, when extended in a chase, allow for a maximum
horizontal run of twelve and one-half feet from the centre of the
fireplace to outside wall and a minimum of 7'6" when retracted in opposite direction. (See Figure 9.)
"D" flex sections and "E" solid sections may be used in conjunction
with one another to obtain different possible horizontal length installations. NOTE: Flex section must not exceed maximum horizontal
length of 3 feet.
Page 6
Figure 9. Retracted installation using PIHR-10.
P/N XG0202
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